| Oligopolists increase price by distorting output decisions, causing cross-firm production inefficiencies. |
| The Cournot output-setting model requires relatively few oligopolists to achieve close to the competitive output. |
| For literature on information-sharing among oligopolists, see Gal-Or, in which rival firms have private information and use it against one another. |
| We show that there exists a time-independent tax rule that guides polluting oligopolists to achieve the socially optimum production path. |
| I conjectured that this might not be so in a world of Rothschild's oligopolists acting according to Clausewitz's Principles of War. |
| We derive corrective tax rules when firms are oligopolists whose production processes generate emissions that add to a stock of pollution that accumulates over time. |
